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The England U19 international has been with the Arsenal academy since he was nine years old

He has since appeared for Arsene Wenger’s team in the Europa League, the FA Cup and the Carabao Cup.

London-born Nelson is a quick and skilful winger tipped to reach the very top and has been scouted heavily by several clubs from the Premier League and other top European leagues, all interested in signing him.

Arsenal could lose the teenager if they are unable to extend his contract, just as they are set to lose first-team stars such as Alexis Sanchez and Mesut Ozil.

Sanchez is close to joining Manchester United for a cut-price £35million with only six months left on his contract.

Nelson (left) is a quick and skilful winger tipped to reach the very top of the game

Ozil is expected to walk away from Arsenal on a free transfer at the end of the season.

An increasing number of top European clubs are monitoring the Premier League academy graduates very closely, aware of their technical quality and the problems they face breaking into the first team in English football.

Chris Willock and Kaylen Hinds, both 19, left Arsenal last year to join Benfica and Wolfsburg respectively, and Jadon Sancho, 17, left Manchester City for Borussia Dortmund.